What it does
A stable, oil-soluble vitamin C derivative. Provides antioxidant and brightening benefits in formulas where pure L-ascorbic acid would be too unstable.
Best for
Lifting creams where vitamin C functions as a supporting antioxidant rather than the hero active. Compatible with sensitive and reactive skin.
The full picture
Ascorbyl palmitate is L-ascorbic acid esterified with palmitic acid, which gives it three big advantages over pure vitamin C: it is oil-soluble (so it can sit in cream-base formulas), much more stable (no browning over time), and gentler on sensitive skin. The trade-off is reduced bioactivity compared to pure L-ascorbic acid at 10 to 20% (the gold standard). It works best as a supporting antioxidant rather than the primary anti-aging active. Found in ALASTIN, ISDIN, and Medik8.
Evidence
Ascorbyl palmitate is recognized for its antioxidant function in cosmetic formulations and is safer for oil-rich creams than free ascorbic acid.
Read the source: Cosmetic Ingredient Review: Ascorbyl Palmitate ->